Microsoft recently filed patent for Logo for Microsoft store.The logo is very similar to windows logo.Same four colors but geometrically more sound.
According to Zheng@istartedsomething this logo is registered to cover “retail store services and online retail services featuring computers, computer hardware, software, computer games, computer peripherals, portable music players and accessories, personal digital assistants, cell phones and accessories, video game consoles and accessories, webcams, books, clothing, back packs, messenger bags, computer bags and novelty items”.